EP2392703B1 - Storage of a flexible arch in a revolving flat card - Google Patents

Storage of a flexible arch in a revolving flat card Download PDF

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Publication number
EP2392703B1
EP2392703B1 EP20110004188 EP11004188A EP2392703B1 EP 2392703 B1 EP2392703 B1 EP 2392703B1 EP 20110004188 EP20110004188 EP 20110004188 EP 11004188 A EP11004188 A EP 11004188A EP 2392703 B1 EP2392703 B1 EP 2392703B1
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EP
European Patent Office
Prior art keywords
drum
flexible bend
pin
displacement
mounting according
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EP20110004188
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German (de)
French (fr)
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EP2392703A1 (en
Inventor
Emil Medvetechi
Willi Sigg
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP2392703A1 publication Critical patent/EP2392703A1/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02Carding machines
    • D01G15/12Details
    • D01G15/28Supporting arrangements for carding elements; Arrangements for adjusting relative positions of carding elements

Definitions

  • the present invention relates to a storage of a Flexibeibogens in a revolving flat card.
  • the lid area together with the drum forms the main carding zone and has as function the dissolution of the flakes into single fibers, removal of impurities and dust, elimination of very short fibers, the dissolution of nits and the parallelization of the fibers.
  • hard covers, revolving lids or a mixture of fixed and revolving lids are used.
  • a revolving lids or a mixture of hard covers and revolving lids one speaks of a revolving flat card. Between the sets of covers and the clothing of the drum forms a narrow gap called the carding nip.
  • revolving lids by the revolving lids, guided by arcuate strips - so-called flexible arch, Regulierbogen, Flexbogen or Gleitbogen - are guided along a predetermined distance by these strips in the circumferential direction of the drum.
  • the size of the carding nip lies with a revolving flat card between 0.10 to 0.30 mm for cotton or up to 0.40 mm for man-made fibers.
  • the flexible bend is secured to the machine frame with adjusting screws.
  • the adjusting screws allow a concentric adjustment of the surface of the flexible bend so that the traveling lids can be guided along the drum surface at a constant distance.
  • the setting accuracy depends on the design of the adjusting screws.
  • the flexible sheet is supported on rotatably mounted rollers.
  • the rollers are designed as rotatable helical cams. Upon rotation of these cams is raised by the worm shape of the flexible bend at the corresponding support point and in the radial direction away from the drum axis or to these. In this way, a coarse adjustment of the carding nip is proposed.
  • the flexible sheet itself is moved in the drum rotation direction, which causes the radial distance of the flexible sheet to change from the drum axis.
  • a disadvantage of the device is that the entire flexible sheet must be moved to adjust the carding gap.
  • the fine adjustment is provided by the movement of the flexible bend, which is associated with a considerable expenditure of force and thus only jerking can be performed.
  • the invention of the present application has for its object to provide a storage of a flexible sheet, which allows an exact fine adjustment of the carding nip, without changing the position of the flexible sheet in the direction of rotation of the drum.
  • Another object of the invention is to provide a bearing which eliminates the need to adjust the setting to compensate for thermal expansion of the drum.
  • a storage of a flexible sheet is proposed in a revolving flat card with a drum and a drum axis, wherein the bearing comprises at least three bearings, each with an eccentrically mounted bolt, and the flexible sheet is held at each bearing point on the eccentric bearing bolts such that is moved radially to the drum axis during a rotational movement of the bolt, the flexible sheet.
  • a setting device spaced from the bolt is provided and this adjusting device connected at a point of articulation via a lever with the bolt such that in a linear displacement of the articulation point in the adjusting device on the lever, a rotational movement of the bolt is caused.
  • the flexible bend is supported on the machine frame.
  • bearings are provided.
  • the number of bearings depends on the design of the flexible sheet, in particular its length.
  • the bearing can be arranged symmetrically or asymmetrically with respect to the flexible bend.
  • more than three bearing points for example five or seven bearing points, are necessary. In this case, the storage of the flexible sheet takes place in such a way that the traveling lids sliding thereon are guided along in the desired manner of the drum surface.
  • the flexible sheet is held at each bearing by a bolt.
  • the flexible bend rests on the bolt.
  • the bolt is held by an axle in the machine frame with the bolt being eccentrically attached to the axle.
  • the bolt can also be made in one piece with the axle.
  • the arrangement is also conceivable vice versa, so that the bolt is mounted in the machine frame and the axis of the bolt is used to support the flexible bend. If the bolt or its axis undergoes a rotational movement, this causes a radial displacement of the support point relative to the drum axis and thus of the flexible bend due to the eccentric mounting of the bolt.
  • the bolt can be freely rotatable or be arranged in its position relative to the machine frame adjustable. It is also conceivable that the bearing of the bolt itself is made adjustable in order to adjust a coarse adjustment of the distance from the support point of the flexible sheet to the axis of the drum during assembly can.
  • the bolt is connected via a lever to a setting device spaced from the bolt.
  • the adjusting device is connected at a point of articulation via the lever with the bolt such that upon a linear displacement of the articulation point in the adjusting device via the lever, a rotational movement of the bolt is caused.
  • This rotational movement of the bolt causes a radial displacement of the support point of the flexible bend and thus an adjustment of the carding gap.
  • the lever is rotatably connected to the bolt, so that a pivoting movement of the lever through the fixed axis of the bolt leads to a rotational movement of the bolt. Due to the eccentric arrangement of the bolt, the radial distance of the support point of the flexible sheet from the drum axis is changed during a rotational movement.
  • the bolt is round or represents only a circle segment, as long as the support point of the flexible bend is displaced on the bolt by a rotation of the bolt radially to the drum axis.
  • the same effect is achieved when the lever is rotatably connected to the axis when the axis is not provided fixed, but rotatably connected to the bolt.
  • the embodiment of the bolt in particular the geometric shape of the outer contour and the eccentricity determined thereby, respectively, the radial distance of the support point with respect to the drum axis, which is changed by the rotational movement of the bolt, must be carried out according to the adjustment possibilities to be achieved.
  • a bolt with variable eccentricity To obtain a shape independent of the starting position of the bolt after the coarse adjustment of the flexible bend, use a bolt with variable eccentricity. If, however, a circular outer contour of the bolt is used with a fixed eccentricity, results depending on the position of the bolt a different-sized displacement of the support point at a same large rotational movement of the bolt.
  • a bolt with a variable eccentricity corresponds to a spiral outer contour. Contrary to a circular design, a helical design of the outer contour of the bolt results in a linear dependence of the radial displacement of the support point of the flexible bend to the angle of rotation of the bolt. As a result, the initial position of the bolt after the coarse adjustment of the flexible sheet is irrelevant and it results for all bearings the same radial displacements of the support points upon rotation of the bolt by a certain angle.
  • the adjusting device may comprise, for example, an adjusting screw with a screw axis.
  • the articulation point can be formed by a component provided with an internal thread through which the adjusting screw is guided.
  • the lever is connected at one end to the bolt and at the other end to the component forming the articulation point.
  • the connection with the component is advantageously designed as a joint.
  • the rotation of the adjusting screw causes the linear displacement of the articulation point or of the component along the screw axis. This results in a pivoting movement of the lever, which in turn has a rotation of the bolt result.
  • the adjusting device comprises a biasing means, wherein the biasing means is arranged such that a play-free displacement of the articulation point takes place in the adjusting device.
  • the biasing means is, for example, a compression spring which is installed between the machine frame in which the adjusting device is held, and the articulation point-forming component, the component in the screw thread is fixed such that the flanks of the internal thread of the component on one side of the flanks of the external thread Adjusting screw to be pressed. In this way, a play-free displacement of the component or the articulation point on the screw axis is possible by turning the adjusting screw.
  • such an arrangement of a compression spring has the advantage that a fraction of the compression spring causes a radial displacement of the flexible sheet away from the drum axis. As a result, a failure of the compression spring does not cause the moving lid can touch the drum surface by unintentional lowering of the flexible arch.
  • a tension spring is provided with a corresponding arrangement of the device.
  • Other biasing means which allow a backlash-free movement of the articulation point can be used, for example pneumatic or hydraulic elements.
  • a backlash-free displacement of the component, respectively the articulation point, on the screw axis can also be achieved by the use of elastic threaded sleeves as a biasing means.
  • the component and the biasing means form a unit, which is an elastic threaded sleeve.
  • Elastic threaded sleeves are made such that they are held on the adjusting screw under a residual stress.
  • Elastic threaded sleeves for example, have two independent internal threads, which are manufactured under a bias and are forced apart by a screw. This creates a tension between the two threads, which leads to a play-free movement of the threaded sleeve on a screw.
  • the adjustment device comprises a temperature compensation sleeve, which in addition to the rotation of the adjusting screw causes a linear displacement of the articulation point along the screw axis to compensate for a temperature-induced expansion of the drum via a corresponding radial displacement of the flexible bend.
  • the temperature compensation sleeve is arranged in the adjustment device such that the sleeve can expand or contract even when heated. This temperature-induced change in the length of the temperature compensation sleeve also causes a linear displacement of the deflection point along the screw axis.
  • the length of the temperature compensation sleeve and the material of the Terrperaturaus remplise is dimensioned such that their expansion causes a radial displacement of the flexible sheet in the same order of magnitude, as the drum expands at the same temperature change.
  • a manual or programmed adjustment in the temperature-induced expansion of the drum is no longer necessary.
  • the adjustment device is thus self-adjusting with respect to temperature compensation. This has the advantage that the adjustment of the flexible bend in the cold state of the machine can be made and after warming up the machine no adjustment is required. The differences in temperature between the Drum surface and the installation of the adjustment is taken into account in the design of material and length of the temperature compensation sleeve.
  • the eccentricity of the bolt is in such a ratio with the length of the lever that one revolution of the adjusting screw causes a radial displacement of the flexible elbow from 0.1% to 10% of a thread pitch provided on the adjusting screw. If, for example, the thread pitch of the adjusting screw is provided at 2 mm per revolution and the ratio is set at 1.0%, a complete revolution of the adjusting screw causes a radial displacement of the flexible sheet by 0.02 mm.
  • the ratio between the lever length and the eccentricity of the bolt and the pitch of the thread of the adjusting screw is dimensioned such that a complete revolution of the adjusting screw leads to a radial displacement of the flexible sheet of 0.01 mm.
  • the flexible bend can be adjusted by 0.0025 mm with a quarter turn of the adjustment screw. This is advantageous, for example, in the case of re-grinding of the trims of the revolving covers or the compensation of already slight signs of wear. A given carding gap can be maintained exactly, which leads to a consistent quality of the carding.
  • a releasable blocking of the displacement of the articulation point for fixing a basic setting is provided in an advantageous embodiment of the invention.
  • the attachment point is held in the adjustment via a determination of the lever.
  • the bolt or its axis is rotated until the flexible sheet is roughly adjusted. Subsequently, the lever or its axis is fixed to the bolt and the blocking released. This ensures that regardless of the basic setting always the same Feinverstellpotential the adjuster is present in both directions.
  • At least at one bearing point of the Flexibelbo-gene with the bolt in operative connection that the flexible sheet can not lift off the bolt.
  • This can be achieved by the bolt from the flexible bend is covered on two sides.
  • the bolt can be held in a arranged in the direction of rotation of the drum slot of the flexible bend.
  • Another possibility forms a tension of the flexible bend at the location of storage with the machine frame, for example by means of a spring or a spring-loaded tie rod.
  • a displacement means is arranged, wherein the flexible sheet is simultaneously displaceable over the displacement means in all bearing points radially to the drum axis.
  • the displacement means is designed such that, as a result of the movement thereof, a distance between the bolt and the flexible bend changes radially with respect to the drum axis.
  • the displacement means may for example be designed as a top of the bearings away leading sheet metal strip.
  • the metal strip is ground in each case in the region of a bearing with a uniform thickness change, so that changes in movement of the metal strip in the direction of rotation of the drum axis, the distance between the support point of the bolt and the flexible bend. Since such a metal strip is moved by all bearings simultaneously, learns the Flexibelbogen in its entirety a simultaneous adjustment of the radial distance to the drum axis at all bearings.
  • FIG. 1 a known revolving flat card 1 is shown, wherein flakes are fed from a hopper 2 a fiber feeding device 3 and a subsequent drum 4.
  • the revolving flat card 1 comprises a single drum 4 (master cylinder or so-called drum), which is rotatably supported in a machine frame 5.
  • the drum 4 works in a known manner with a wanderdeckelan extract 6, a fiber feeding device 3, and a fiber pickup 8 together, the latter in particular has a so-called takers 9.
  • Carding elements and fiber guiding elements which are not shown here in detail, can be arranged between the revolving lid arrangement 6, the fiber feeding device 3 and the fiber dispensing system 8.
  • the fiber-receiving system 8 conveys the sliver 10 to a schematically indicated sliver storage 11.
  • traveling lid assembly 6 a plurality of traveling lids 13 is provided, wherein in the FIG. 1 only individual moving lid 13 are shown schematically.
  • traveling lid assemblies 6 include closely spaced a plurality of traveling lids 13 that circulate.
  • the moving lid 13 are supported in the vicinity of their respective end faces of endless belts 12 and moved against or with the direction of rotation of the drum 4.
  • the support takes place on flexible sheet 7 on the underside of the revolving lid assembly 6. Sliding on the flexible sheet 7, the moving lid 13 are guided along the drum surface.
  • FIG. 2 shows a schematic representation of an embodiment of a bearing 20 according to the invention.
  • the bolt 21 is mounted eccentrically, that is, the axis of rotation of the bolt 21 is not disposed in the center.
  • the bolt 21 can, contrary to the illustration in FIG. 2 be executed as a circle segment, which is located in the region of the flexible bend 7
  • the bolt 21 causes by its rotational movement 22, a lifting of the Flexibelbogens 7.
  • the bolt 21 is connected via a lever 24 with a pivot point 31 of a spaced apart from the bolt 21 adjuster 23.
  • the articulation point 31 is in FIG. 2 formed by a component (32) which engages with its internal thread in the external thread of an adjusting screw 26.
  • the articulation point 31 is moved linearly on the screw axis 27 via the intermeshing threads. The movement can take place in both directions, depending on the design of the thread and the direction of rotation of the adjusting screw 26th
  • the adjusting device 23 is held in the machine frame 5 by the adjusting screw 26.
  • a compression spring 28 is installed between the machine frame 5 and the articulation point 31 forming member (32) between the machine frame 5 and the articulation point 31 forming member (32).
  • the compression spring 28 By the compression spring 28, the flanks of the internal thread of the component (32) are pressed on one side in the direction of force of the compression spring 28 against the flanks of the external thread of the adjusting screw 26.
  • the linear movement of the articulation point 31 on the screw axis 27 upon rotation of the adjusting screw 26 is free of play.
  • the direction in which a rotation of the adjusting screw 26 is carried out corresponds to the linear displacement of the articulation point 31 always the predetermined pitch of the thread corresponding to the number of revolutions of the adjusting screw 26. Should the compression spring 28 break, there is a movement of the articulation point 31 in that direction, which via the lever 24 and the pin 21 causes a lifting of the flexible sheet 7.
  • the adjusting screw 26 is guided in addition to the attachment in the machine frame 5 by a temperature compensation sleeve 29.
  • the temperature compensation sleeve 29 is clamped between the machine frame 5 and the screw head of the adjusting screw 26.
  • the temperature compensation sleeve 29 expands in length.
  • the expansion of the temperature compensation sleeve 29 is due to the material larger than the extension of the adjusting screw 26.
  • the articulation point 31 is linearly displaced on the screw axis 27, which in turn via the lever 24 and the pin 21 to a displacement of the support point and thus the flexible sheet 7 leads ,
  • FIG. 3 shows a schematic representation of a flexible sheet 7 with three bearing 20.
  • the bolt 21 is rotatably connected via a lever 24 with a pivot point of an adjusting device 23.
  • the adjusting device 23 is shown symbolically for each of the three bearings 20 and corresponds, for example, in FIG. 2 described embodiment.
  • a displacement means 40 is inserted between the support point of the bolt 21 and the flexible sheet 7.
  • the displacement means 40 is provided such that it is guided through all bearing points 20 of the flexible sheet 7.
  • the displacement means 40 is designed with a varying thickness. In a movement of the displacement means 40 in the drum circumferential direction, this causes the flexible sheet 7 is moved relative to the support point of the bolt 21 radially to the drum axis.
  • the displacement means 40 is connected at one of its ends to the machine frame 5.
  • the displacement means 40 is held flexibly in the machine frame 5.
  • the holder is designed for example with a spring or other traction means. At a bias of the traction means is ensured that the displacement means 40 is movable in both directions along the drum surface and can be held in a selected position.
  • this is connected at its second end to a drive 41.
  • the drive 41 can be done manually or by motor, for which purpose various drive means are suitable, for example electric motors or pneumatic drives.
  • a cover actuator can be operated with the aid of the displacement means 40.
  • a Deckelaktorik used for automatic adjustment of the carding gap between the revolving flats 13 and the drum 4 a card 1. If the sets of drum 4 or the sets of revolving cover 13, for example, reground, this change in the carding is determined by the measuring device of the controller and automatically over the displacement means 40 compensated.
  • FIG. 4 shows an embodiment of a displacement means 40 in a schematic representation.
  • a displacement means 40 while a metal strip 50 is provided, which is guided through all bearings 23 therethrough.
  • the metal strip 50 is threaded between the bolt 21 and the flexible sheet 7.
  • the metal strip 50 is ground in each case. This results in a constant change in the thickness of the metal strip 50 in the region of the bearing 23.
  • the pin 21 is stationary, the distance between the pin 21 and the flexible sheet 7 is increased or reduced in a movement 51 of the metal strip 50.
  • the flexible sheet 7 is displaced simultaneously at all bearing points 23 radially relative to the drum axis.
  • a sheet metal strip is used and these metal strips are connected to each other by other means, such as cables to a simultaneous and instead of a metal strip to allow similar movement.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

Die vorliegende Erfindung betrifft eine Lagerung eines Flexibeibogens in einer Wanderdeckelkarde.The present invention relates to a storage of a Flexibeibogens in a revolving flat card.

In einer Karde bildet der Deckelbereich zusammen mit der Trommel die Hauptkardierzone und hat als Funktion die Auflösung der Flocken zu Einzelfasern, Ausscheidung von Verunreinigungen und Staub, Eliminierung von sehr kurzen Fasern, die Auflösung von Nissen und die Parallelisierung der Fasern. Je nach Anwendung einer Karde werden dabei Festdeckel, Wanderdeckel oder eine Mischung aus Fest- und Wanderdeckel eingesetzt. Bei einem Einsatz von Wanderdeckeln oder einer Mischung von Festdeckeln und Wanderdeckeln spricht man von einer Wanderdeckelkarde. Zwischen den Garnituren der Deckel und der Garnitur der Trommel formt sich ein enger Spalt, der Kardierspalt genannt wird. Er ergibt sich beim Einsatz von Wanderdeckeln indem die Wanderdeckel, geführt durch bogenförmige Leisten - sogenannte Flexibelbogen, Regulierbogen, Flexbogen oder Gleitbogen -, in einem durch diese Leisten bestimmten Abstand, in Umfangsrichtung der Trommel entlang geführt werden. Die Grösse des Kardierspaltes liegt bei einer Wanderdeckelkarde zwischen 0.10 bis 0.30 mm für Baumwolle oder bis 0.40 mm für Chemiefasern.In a carding machine, the lid area together with the drum forms the main carding zone and has as function the dissolution of the flakes into single fibers, removal of impurities and dust, elimination of very short fibers, the dissolution of nits and the parallelization of the fibers. Depending on the application of a card, hard covers, revolving lids or a mixture of fixed and revolving lids are used. When using a revolving lids or a mixture of hard covers and revolving lids, one speaks of a revolving flat card. Between the sets of covers and the clothing of the drum forms a narrow gap called the carding nip. It results in the use of revolving lids by the revolving lids, guided by arcuate strips - so-called flexible arch, Regulierbogen, Flexbogen or Gleitbogen - are guided along a predetermined distance by these strips in the circumferential direction of the drum. The size of the carding nip lies with a revolving flat card between 0.10 to 0.30 mm for cotton or up to 0.40 mm for man-made fibers.

Es ist bekannt, dass die Flexibelbogen radial verstellbar ausgeführt sein müssen, um einen über den gesamten Verlauf der Flexibelbogen gleichbleibenden Kardierspalt gewährleisten zu können. Die radiale Verstellbarkeit ist notwendig aus verschiedenen Gründen:

  1. a) Zur Neueinstellung des Kardierspaltes bei der Herstellung der Karde oder nach einem Ersatz der Trommelgarnitur. Dabei ist eine individuelle Verstellung von einzelnen Lagerstellen notwendig, um eine konzentrische Einstellung der Flexibelbogen gegenüber der Trommeloberfläche zu ermöglichen.
  2. b) Zur Nechstellung des Kardierspaltes bei Abnutzungserscheinungen der Garnituren, wobei hier eine gleichmässige Verstellung aller Lagerstellen erwünscht ist
  3. c) Zur Nachstellung des Kardierspaltes nach einem Schleifen der Garnituren.
  4. d) Zur Korrektur des Kardierspaites aufgrund der thermischen Ausdehnung der Trommel.
It is known that the flexible elbow must be designed to be radially adjustable in order to ensure a consistent over the entire course of the flexible arch carding. The radial adjustability is necessary for various reasons:
  1. a) To readjust the carding gap during the production of the card or after a replacement of the drum set. In this case, an individual adjustment of individual bearings is necessary to allow a concentric adjustment of the flexible sheet opposite the drum surface.
  2. b) For Nechstellung the carding nip at wear of the trimmings, in which case a uniform adjustment of all bearings is desired
  3. c) To re-adjust the carding gap after sanding the sets.
  4. d) For correcting the carding chip due to the thermal expansion of the drum.

Bei einer bekannten Vorrichtung ist der Flexibelbogen mit Einstellschrauben am Maschinengestell befestigt Die Einstellschrauben ermöglichen eine konzentrische Einstellung der Oberfläche des Flexibelbogens, sodass die Wanderdeckel entlang der Trommeloberfläche mit gleichbleibendem Abstand geführt werden können. Die Einstellgenauigkeit ist dabei abhängig von der Ausführung der Einstellschrauben.In a known device, the flexible bend is secured to the machine frame with adjusting screws. The adjusting screws allow a concentric adjustment of the surface of the flexible bend so that the traveling lids can be guided along the drum surface at a constant distance. The setting accuracy depends on the design of the adjusting screws.

In der EP 1 201 797 wurde eine Vorrichtung zum Einstellen des Kardierspaltes vorgeschlagen, bei welcher der Flexibelbogen auf drehbar gelagerten Rollen angestützt wird. Die Rollen sind dabei als drehbare schneckenförmige Nocken ausgebildet. Bei einer Drehung dieser Nocken wird durch die Schneckenform der Flexibelbogen an der entsprechenden Abstützstelle angehoben und in radialer Richtung von der Trommelachse weg oder auf diese zu bewegt. Auf diese Art wird eine Grobeinstellung des Kardierspaltes vorgeschlagen. Für die Feineinstellung wird der Flexibelbogen selbst in Trommeldrehrichtung bewegt, was dazu führt, dass sich der radiale Abstand des Flexibelbogens von der Trommelachse verändert.In the EP 1 201 797 has proposed a device for adjusting the carding gap, in which the flexible sheet is supported on rotatably mounted rollers. The rollers are designed as rotatable helical cams. Upon rotation of these cams is raised by the worm shape of the flexible bend at the corresponding support point and in the radial direction away from the drum axis or to these. In this way, a coarse adjustment of the carding nip is proposed. For fine adjustment, the flexible sheet itself is moved in the drum rotation direction, which causes the radial distance of the flexible sheet to change from the drum axis.

Nachteilig an der Vorrichtung ist, dass der gesamte Flexibelbogen bewegt werden muss um den Kardierspalt einzustellen. Insbesondere ist die Feineinstellung durch die Bewegung des Flexibelbogens vorgesehen, was mit einem erheblichen Kraftaufwand verbunden ist und dadurch nur Ruckweise durchgeführt werden kann.A disadvantage of the device is that the entire flexible sheet must be moved to adjust the carding gap. In particular, the fine adjustment is provided by the movement of the flexible bend, which is associated with a considerable expenditure of force and thus only jerking can be performed.

Der Erfindung der vorliegenden Anmeldung liegt die Aufgabe zugrunde, eine Lagerung eines Flexibelbogens zu schaffen, welche eine exakte Feineinstellung des Kardierspaltes ermöglicht, ohne die Position des Flexibelbogens in Drehrichtung der Trommel zu verändern.The invention of the present application has for its object to provide a storage of a flexible sheet, which allows an exact fine adjustment of the carding nip, without changing the position of the flexible sheet in the direction of rotation of the drum.

Eine weitere Aufgabe der Erfindung ist es eine Lagerung zu schaffen, welche die Nachstellung der Einstellung zur Kompensation von thermischen Ausdehnungen der Trommel überflüssig macht.Another object of the invention is to provide a bearing which eliminates the need to adjust the setting to compensate for thermal expansion of the drum.

Die Aufgabe wird gelöst durch die Merkmale im kennzeichnenden Teil der unabhängigen Ansprüche.The object is solved by the features in the characterizing part of the independent claims.

Zur Lösung der Aufgabe wird eine Lagerung eines Flexibelbogens in einer Wanderdeckelkarde mit einer Trommel und einer Trommelachse vorgeschlagen, wobei die Lagerung zumindest drei Lagerstellen mit jeweils einem exzentrisch gelagerten Bolzen umfasst, und der Flexibelbogen bei jeder Lagerstelle derart auf den exzentrisch gelagerten Bolzen gehalten ist, dass bei einer Drehbewegung des Bolzens der Flexibelbogen radial zur Trommelachse verschoben wird. Dabei ist eine vom Bolzen beabstandete Einstellvorrichtung vorgesehen und diese Einstellvorrichtung an einem Anlenkpunkt über einen Hebel mit dem Bolzen derart verbunden, dass bei einer linearen Verschiebung des Anlenkpunktes In der Einstellvorrichtung über den Hebel eine Drehbewegung des Bolzens verursacht wird.To solve the problem, a storage of a flexible sheet is proposed in a revolving flat card with a drum and a drum axis, wherein the bearing comprises at least three bearings, each with an eccentrically mounted bolt, and the flexible sheet is held at each bearing point on the eccentric bearing bolts such that is moved radially to the drum axis during a rotational movement of the bolt, the flexible sheet. In this case, a setting device spaced from the bolt is provided and this adjusting device connected at a point of articulation via a lever with the bolt such that in a linear displacement of the articulation point in the adjusting device on the lever, a rotational movement of the bolt is caused.

Der Flexibelbogen wird auf dem Maschinengestell abgestützt. Dazu sind mehrere Abstotzpunkte, soggenannte Lagerstellen vorgesehen. Die Anzahl der Lagerstellen ist abhängig von der Ausführung des Flexibelbogens, insbesondere von seiner Länge. Für eine stabile Lagerung sind zumindest drei Lagerstellen notwendig. Die Lagerstelle können in bezug auf den Flexibelbogen symmetrisch oder asymmetrisch angeordnet sein. Wird der Flexibelbogen jedoch mehrteilig ausgeführt oder führt er Ober einen grösseren Umfang der Trommel hinweg sind mehr als drei Lagerstellen, beispielsweise fünf oder sieben Lagerstellen notwendig. Dabei erfolgt die Lagerung des Flexibelbogens derart, dass die darauf gleitenden Wanderdeckel in der gewünschten Art der Trommeloberfläche entlang geführt werden.The flexible bend is supported on the machine frame. For this purpose, several Abstotzpunkte, so-called bearings are provided. The number of bearings depends on the design of the flexible sheet, in particular its length. For stable storage at least three bearings are necessary. The bearing can be arranged symmetrically or asymmetrically with respect to the flexible bend. However, if the flexible sheet is executed in several parts or leads over a larger circumference of the drum, more than three bearing points, for example five or seven bearing points, are necessary. In this case, the storage of the flexible sheet takes place in such a way that the traveling lids sliding thereon are guided along in the desired manner of the drum surface.

Nach der Erfindung wird der Flexibelbogen an jeder Lagerstelle von einem Bolzen gehalten. Der Flexibelbogen liegt dabei auf dem Bolzen auf. Der Bolzen wird von einer Achse im Maschinengestell gehalten, wobei der Bolzen exzentrisch an der Achse befestigt ist Der Bolzen kann auch mit der Achse einstückig gefertigt sein. Die Anordnung ist auch umgekehrt denkbar, sodass der der Bolzen im Maschinegestell gelagert ist und die Achse des Bolzens zur Abstützung des Flexibelbogens genutzt wird. Erfährt der Bolzen oder dessen Achse eine Drehbewegung bewirkt dies aufgrund der exzentrischen Lagerung des Bolzens eine radiale Verschiebung des Auflagepunktes gegenüber der Trommelachse und damit des Flexibelbogens. Zur Grobeinstellung des Flexibelbogens kann der Bolzen frei drehbar ausgeführt sein oder in seiner Lage gegenüber dem Maschinengestell verstellbar angeordnet sein. Es ist auch denkbar, dass die Lagerung des Bolzens selbst einstellbar ausgeführt wird um bei der Montage eine Grobeinstellung des Abstandes vom Auflagepunkt des Flexibelbogens zur Achse der Trommel einstellen zu können.According to the invention, the flexible sheet is held at each bearing by a bolt. The flexible bend rests on the bolt. The bolt is held by an axle in the machine frame with the bolt being eccentrically attached to the axle. The bolt can also be made in one piece with the axle. The arrangement is also conceivable vice versa, so that the bolt is mounted in the machine frame and the axis of the bolt is used to support the flexible bend. If the bolt or its axis undergoes a rotational movement, this causes a radial displacement of the support point relative to the drum axis and thus of the flexible bend due to the eccentric mounting of the bolt. For coarse adjustment of the flexible arch the bolt can be freely rotatable or be arranged in its position relative to the machine frame adjustable. It is also conceivable that the bearing of the bolt itself is made adjustable in order to adjust a coarse adjustment of the distance from the support point of the flexible sheet to the axis of the drum during assembly can.

Nachdem die Grobeinstellung erfolgt ist wird der Bolzen über einen Hebel mit einer vom Bolzen beabstandeten Einstellvorrichtung verbunden. Die Einstellvorrichtung ist an einem Anlenkpunkt über den Hebel mit dem Bolzen derart verbunden, dass bei einer linearen Verschiebung des Anlenkpunktes in der Einstellvorrichtung über den Hebel eine Drehbewegung des Bolzens verursacht wird. Diese Drehbewegung des Bolzens bewirkt eine radiale Verschiebung des Auflagepunktes des Flexibelbogens und damit eine Verstellung des Kardierspaltes. Der Hebel ist mit dem Bolzen drehfest verbunden, sodass eine Schwenkbewegung des Hebels durch die feststehende Achse des Bolzens zu einer Drehbewegung des Bolzens führt. Durch die Exzentrische Anordnung des Bolzens wird bei einer Drehbewegung der radiale Abstand des Auflagepunktes des Flexibelbogens von der Trommelachse verändert. Dabei ist es unwichtig, ob der Bolzen rund ist oder aber nur ein Kreissegment darstellt, solange der Auflagepunkt des Flexibelbogens auf dem Bolzen durch eine Drehung des Bolzens radial zur Trommelachse verschoben wird. Die gleiche Wirkung wird erzielt, wenn der Hebel mit der Achse drehfest verbunden ist, wenn die Achse nicht feststehend vorgesehen, sondern drehfest mit dem Bolzen verbunden ist.After the coarse adjustment has taken place, the bolt is connected via a lever to a setting device spaced from the bolt. The adjusting device is connected at a point of articulation via the lever with the bolt such that upon a linear displacement of the articulation point in the adjusting device via the lever, a rotational movement of the bolt is caused. This rotational movement of the bolt causes a radial displacement of the support point of the flexible bend and thus an adjustment of the carding gap. The lever is rotatably connected to the bolt, so that a pivoting movement of the lever through the fixed axis of the bolt leads to a rotational movement of the bolt. Due to the eccentric arrangement of the bolt, the radial distance of the support point of the flexible sheet from the drum axis is changed during a rotational movement. It is unimportant whether the bolt is round or represents only a circle segment, as long as the support point of the flexible bend is displaced on the bolt by a rotation of the bolt radially to the drum axis. The same effect is achieved when the lever is rotatably connected to the axis when the axis is not provided fixed, but rotatably connected to the bolt.

Die Ausführungsform des Bolzens, insbesondere die geometrische Form der Aussenkontur und die dadurch bestimmte Exzentrizität, respektive der durch die Drehbewegung des Bolzens sich verändemde radiale Abstand des Auflagepunktes in bezug auf die Trommelachse, ist entsprechend der zu erreichenden Einstellungsmöglichkeiten auszuführen. Um eine von der Ausgangsstellung des Bolzens nach der Grobeinstellung des Flexibelbogens unabhängige Form zu erhalten, Ist ein Bolzen mit variabler Exzentrizitat zu verwenden. Wird hingegen eine Kreisförmige Aussenkontur des Bolzens mit einer festen Exzentrizität verwendet, ergibt sich je nach Stellung des Bolzens eine un-terschiedlich grosse Verschiebung des Auflagepunktes bei einer gleich grossen Drehbewegung des Bolzens.The embodiment of the bolt, in particular the geometric shape of the outer contour and the eccentricity determined thereby, respectively, the radial distance of the support point with respect to the drum axis, which is changed by the rotational movement of the bolt, must be carried out according to the adjustment possibilities to be achieved. To obtain a shape independent of the starting position of the bolt after the coarse adjustment of the flexible bend, use a bolt with variable eccentricity. If, however, a circular outer contour of the bolt is used with a fixed eccentricity, results depending on the position of the bolt a different-sized displacement of the support point at a same large rotational movement of the bolt.

Einem Bolzen mit einer variablen Exzentrizität entspricht eine spiralförmige Aussenkontur. Entgegen einer kreisförmigen Ausführung ergibt eine spiralförmige Ausführung der Aussenkontur des Bolzens eine lineare Abhängigkeit der radialen Verschiebung des Auflagepunktes des Flexibelbogens zum Drehwinkel des Bolzens. Dadurch ist die Ausgangsstellung des Bolzens nach der Grobeinstellung des Flexibelbogens unerheblich und es ergeben sich für alle Lagerstellen die gleichen radialen Verschiebungen der Auflagepunkte bei einer Drehung der Bolzen um einen bestimmten Winkel.A bolt with a variable eccentricity corresponds to a spiral outer contour. Contrary to a circular design, a helical design of the outer contour of the bolt results in a linear dependence of the radial displacement of the support point of the flexible bend to the angle of rotation of the bolt. As a result, the initial position of the bolt after the coarse adjustment of the flexible sheet is irrelevant and it results for all bearings the same radial displacements of the support points upon rotation of the bolt by a certain angle.

Die Einstellvorrichtung kann beispielsweise eine Einstellschraube mit einer Schraubenachse umfassen. Der Anlenkpunkt kann dabei durch ein mit einem Innengewinde versehenen Bauteil gebildet werden, durch welches die Einstellschraube geführt ist Der Hebel ist an seinem einen Ende mit dem Bolzen und am anderen Ende mit dem den Anlenkpunkt bildenden Bauteil verbunden. Die Verbindung mit dem Bauteil ist vorteilhafterweise als Gelenk ausgeführt. Durch die Drehung der Einstellschraube wird die lineare Verschiebung des Anlenkpunktes respektive des Bauteils entlang der Schraubenachse verursacht. Dadurch erfolgt eine Schwenkbewegung des Hebels, was wiederum eine Drehung des Bolzens zur Folge hat.The adjusting device may comprise, for example, an adjusting screw with a screw axis. The articulation point can be formed by a component provided with an internal thread through which the adjusting screw is guided. The lever is connected at one end to the bolt and at the other end to the component forming the articulation point. The connection with the component is advantageously designed as a joint. The rotation of the adjusting screw causes the linear displacement of the articulation point or of the component along the screw axis. This results in a pivoting movement of the lever, which in turn has a rotation of the bolt result.

In einer vorteilhaften Ausführung umfasst die Einstellvorrichtung ein Vorspannmittel, wobei das Vorspannmittel derart angeordnet ist, dass eine spielfreie Verschiebung des Anlenkpunktes In der Einstellvorrichtung erfolgt. Das Vorspannmittel ist beispielsweise eine Druckfeder, welche zwischen dem Maschinengestell, in welchem die Einstellvorrichtung gehalten ist, und dem den Anlenkpunkt bildenden Bauteil eingebaut ist Dadurch wird das Bauteil im Schraubengewinde derart fixiert, dass die Flanken des Innengewindes des Bauteils einseitig auf die Flanken des Aussengewindes der Einstellschraube gepresst werden. Auf diese Weise ist durch das Drehen der Einstellschraube ein spielfreies Verschieben des Bauteils respektive des Anlenkpunktes auf der Schraubenachse möglich. Zudem hat eine derartige Anordnung einer Druckfeder den Vorteil, dass ein Bruch der Druckfeder eine radiale Verschiebung des Flexibelbogens weg von der Trommelachse bewirkt. Dadurch führt ein Versagen der Druckfeder nicht dazu, dass die Wanderdeckel die Trommeloberfläche durch ein unbeabsichtigtes Absenken des Flexibelbogens berühren können. Es ist auch denkbar, dass anstelle einer Druckfeder eine Zugfeder vorgesehen wird bei entsprechender Anordnung der Vorrichtung. Auch andere Vorspannmittel, welche ein spielfreies Bewegen des Anlenkpunktes erlauben können eingesetzt werden, beispielsweise pneumatische oder hydraulische Elemente. Ein spielfreies Verschieben des Bauteils, respektive des Anlenkpunktes, auf der Schraubenachse kann auch durch die Verwendung von elastischen Gewindehülsen als Vorspannmittel erreicht werden. Dabei können das Bauteil und das Vorspannmittel eine Einheit bilden, welche sich als elastische Gewindehülse darstellt. Elastische Gewindehülsen sind derart gefertigt, dass sie auf der Einstellschraube unter einer Eigenspannung gehalten werden. Elastische Gewindehülsen haben beispielsweise zwei unabhängige Innengewinde, welche unter einer Vorspannung gefertigt sind und durch eine Schraube auseinandergedrückt werden. Dadurch entsteht eine Spannung zwischen den beiden Gewinden, die zu einer spielfreien Bewegung der Gewindehülse auf einer Schraube führt.In an advantageous embodiment, the adjusting device comprises a biasing means, wherein the biasing means is arranged such that a play-free displacement of the articulation point takes place in the adjusting device. The biasing means is, for example, a compression spring which is installed between the machine frame in which the adjusting device is held, and the articulation point-forming component, the component in the screw thread is fixed such that the flanks of the internal thread of the component on one side of the flanks of the external thread Adjusting screw to be pressed. In this way, a play-free displacement of the component or the articulation point on the screw axis is possible by turning the adjusting screw. In addition, such an arrangement of a compression spring has the advantage that a fraction of the compression spring causes a radial displacement of the flexible sheet away from the drum axis. As a result, a failure of the compression spring does not cause the moving lid can touch the drum surface by unintentional lowering of the flexible arch. It is also conceivable that instead of a compression spring a tension spring is provided with a corresponding arrangement of the device. Other biasing means, which allow a backlash-free movement of the articulation point can be used, for example pneumatic or hydraulic elements. A backlash-free displacement of the component, respectively the articulation point, on the screw axis can also be achieved by the use of elastic threaded sleeves as a biasing means. In this case, the component and the biasing means form a unit, which is an elastic threaded sleeve. Elastic threaded sleeves are made such that they are held on the adjusting screw under a residual stress. Elastic threaded sleeves, for example, have two independent internal threads, which are manufactured under a bias and are forced apart by a screw. This creates a tension between the two threads, which leads to a play-free movement of the threaded sleeve on a screw.

In einer vorteilhaften Ausführung umfasst die Einstellvorrichtung eine Temperaturausgleichshülse, welche zusätzlich zur Drehung der Einstellschraube eine lineare Verschiebung des Anlenkpunktes entlang der Schraubenachse bewirkt, um eine temperaturbedingte Ausdehnung der Trommel über eine entsprechende radiale Verschiebung des Flexibelbogens zu kompensieren. Die Temperaturausgleichshülse ist derart in der Einstellvorrichtung angeordnet, dass die Hülse selbst bei einer Erwärmung sich ausdehnen oder zusammenziehen kann. Diese temperaturbedingte Veränderung der Länge der Temperaturausgleichshülse bewirkt ebenfalls eine lineare Verschiebung des Auslenkpunktes entlang der Schraubenachse. Dabei ist die Länge der Temperaturausgleichshülse und das Material der Terrperaturausgleichshülse derart bemessen, dass deren Ausdehnung eine radiale Verschiebung des Flexibelbogens in derselben Grössenordnung bewirkt, wie sich die Trommel bei derselben Temperaturveränderung ausdehnt. Dadurch ist eine manuelle oder programmierte Nachstellung bei der temperaturbedingten Ausdehnung der Trommel nicht mehr notwendig. Die Einstellvorrichtung ist somit in bezug auf eine Temperaturkompensation selbsteinstellend. Dies hat den Vorteil, dass die Einstellung des Flexibelbogens im kalten Zustand der Maschine vorgenommen werden kann und nach dem Warmlaufen der Maschine kein Nachstellen mehr erforderlich ist. Die im Betrieb bestehenden Tempersturunterschiede zwischen der Trommeloberfläche und dem Einbauort der Einstellvorrichtung wird in der Auslegung von Material und Länge der Temperaturausgleichshülse berücksichtigt.In an advantageous embodiment, the adjustment device comprises a temperature compensation sleeve, which in addition to the rotation of the adjusting screw causes a linear displacement of the articulation point along the screw axis to compensate for a temperature-induced expansion of the drum via a corresponding radial displacement of the flexible bend. The temperature compensation sleeve is arranged in the adjustment device such that the sleeve can expand or contract even when heated. This temperature-induced change in the length of the temperature compensation sleeve also causes a linear displacement of the deflection point along the screw axis. In this case, the length of the temperature compensation sleeve and the material of the Terrperaturausgleichhülse is dimensioned such that their expansion causes a radial displacement of the flexible sheet in the same order of magnitude, as the drum expands at the same temperature change. As a result, a manual or programmed adjustment in the temperature-induced expansion of the drum is no longer necessary. The adjustment device is thus self-adjusting with respect to temperature compensation. This has the advantage that the adjustment of the flexible bend in the cold state of the machine can be made and after warming up the machine no adjustment is required. The differences in temperature between the Drum surface and the installation of the adjustment is taken into account in the design of material and length of the temperature compensation sleeve.

Die Exzentrizität des Bolzens steht mit der Länge des Hebels in einem derartigen Verhältnis, dass eine Umdrehung der Einstellschraube eine radiale Verschiebung des Flexibelbogens von 0,1% bis 10% einer an der Einstellschraube vorgesehenen Gewindesteigung bewirkt. Ist beispielsweise die Gewindesteigung der Einstellschraube mit 2 mm pro Umdrehung vorgesehen und das Verhältnis bei 1,0% bemessen, bewirkt eine ganze Umdrehung der Einstellschraube eine radiale Verschiebung des Flexibelbogens um 0.02 mm. Vorteilhafterweise ist das Verhältnis zwischen der Hebellänge und der Exzentrizität des Bolzens sowie die Steigung des Gewindes der Einstellschraube derart bemessen, dass eine ganze Umdrehung der Einstellschraube zu einer radialen Verschiebung des Flexibelbogens von 0.01 mm führt. Dadurch kann mit einer Vierteldrehung der Einstellschraube der Flexibelbogen um 0.0025 mm verstellt werden. Dies ist beispielsweise bei einem Nachschleifen der Garnituren der Wanderdeckel oder der Kompensation von bereits geringfügigen Abnutzungserscheinungen vorteilhaft Ein vorgegebener Kardierspalt kann exakt beibehalten werden, was zu einer gleichbleibenden Qualität der Kardierung führt.The eccentricity of the bolt is in such a ratio with the length of the lever that one revolution of the adjusting screw causes a radial displacement of the flexible elbow from 0.1% to 10% of a thread pitch provided on the adjusting screw. If, for example, the thread pitch of the adjusting screw is provided at 2 mm per revolution and the ratio is set at 1.0%, a complete revolution of the adjusting screw causes a radial displacement of the flexible sheet by 0.02 mm. Advantageously, the ratio between the lever length and the eccentricity of the bolt and the pitch of the thread of the adjusting screw is dimensioned such that a complete revolution of the adjusting screw leads to a radial displacement of the flexible sheet of 0.01 mm. As a result, the flexible bend can be adjusted by 0.0025 mm with a quarter turn of the adjustment screw. This is advantageous, for example, in the case of re-grinding of the trims of the revolving covers or the compensation of already slight signs of wear. A given carding gap can be maintained exactly, which leads to a consistent quality of the carding.

Um eine Grobeinstellung vornehmen zu können, beispielsweise bei der Erstmontage einer Karde, ist in einer vorteilhaften Ausführung der Erfindung eine lösbare Blockierung der Verschiebung des Anlenkpunktes zur Fixierung einer Grundeinstellung vorgesehen. Dabei wird über eine Feststellung des Hebels der Anlenkpunkt in der Einstellvorrichtung festgehalten. Der Bolzen oder dessen Achse wird soweit gedreht, bis der Flexibelbogen grob eingestellt ist. Anschliessend wird der Hebel oder dessen Achse am Bolzen fixiert und die Blockierung gelöst. Dadurch wird sichergestellt, dass unabhängig von der Grundeinstellung immer das gleiche Feinverstellpotential der Einstellvorrichtung in beide Richtungen vorhanden ist.In order to make a coarse adjustment, for example, during the initial assembly of a card, a releasable blocking of the displacement of the articulation point for fixing a basic setting is provided in an advantageous embodiment of the invention. In this case, the attachment point is held in the adjustment via a determination of the lever. The bolt or its axis is rotated until the flexible sheet is roughly adjusted. Subsequently, the lever or its axis is fixed to the bolt and the blocking released. This ensures that regardless of the basic setting always the same Feinverstellpotential the adjuster is present in both directions.

In einer vorteilhaften Ausführung steht zumindest an einer Lagerstelle der Flexibelbo-gen mit dem Bolzen derart in Wirkverbindung, dass der Flexibelbogen nicht vom Bolzen abheben kann. Dies kann dadurch erreicht werden, dass der Bolzen vom Flexibelbogen auf zwei Seiten umfasst wird. Dabei kann der Bolzen in einem in Drehrichtung der Trommel angeordneten Schlitz des Flexibelbogens gehalten werden. Eine weitere Möglichkeit bildet eine Verspannung des Flexibelbogens an der Stelle der Lagerung mit dem Maschinengestell, beispielsweise mittels einer Feder oder einer gefederten Zugstange.In an advantageous embodiment, at least at one bearing point of the Flexibelbo-gene with the bolt in operative connection, that the flexible sheet can not lift off the bolt. This can be achieved by the bolt from the flexible bend is covered on two sides. In this case, the bolt can be held in a arranged in the direction of rotation of the drum slot of the flexible bend. Another possibility forms a tension of the flexible bend at the location of storage with the machine frame, for example by means of a spring or a spring-loaded tie rod.

In einer Weiterentwicklung der Vorrichtung ist vorgesehen, dass zwischen dem Flexibelbogen und dem Bolzen ein Verschiebemittel angeordnet ist, wobei der Flexibelbogen über das Verschiebemittel gleichzeitig in allen Lagerstellen radial zur Trommelachse verschiebbar ist. Dadurch wird eine Verstellung aller Lagerstellen über eine einzige Verstelleinrichtung ermöglicht.In a further development of the device is provided that between the flexible sheet and the bolt, a displacement means is arranged, wherein the flexible sheet is simultaneously displaceable over the displacement means in all bearing points radially to the drum axis. As a result, an adjustment of all bearings is possible via a single adjustment.

Das Verschiebemittel ist derart gestaltet, dass sich durch dessen Bewegung ein Abstand zwischen dem Bolzen und dem Flexibelbogen radial zur Trommelachse verändert. Das Verschiebemittel kann beispielsweise als ein Ober die Lagerstellen hinweg führender Blechstreifen ausgeführt sein. Der Blechstreifen ist jeweils im Bereich einer Lagerstelle mit einer gleichmässigen Dickenveränderung angeschliffen, sodass sich bei Bewegung des Blechstreifens in Drehrichtung der Trommelachse der Abstand zwischen dem Auflagepunkt des Bolzens und dem Flexibelbogen verändert. Da ein derartiger Blechstreifen durch sämtliche Lagerstellen gleichzeitig bewegt wird, erfährt der Flexibelbogen in seiner Gesamtheit eine gleichzeitige Verstellung des radialen Abstandes zur Trommelachse an allen Lagerstellen.The displacement means is designed such that, as a result of the movement thereof, a distance between the bolt and the flexible bend changes radially with respect to the drum axis. The displacement means may for example be designed as a top of the bearings away leading sheet metal strip. The metal strip is ground in each case in the region of a bearing with a uniform thickness change, so that changes in movement of the metal strip in the direction of rotation of the drum axis, the distance between the support point of the bolt and the flexible bend. Since such a metal strip is moved by all bearings simultaneously, learns the Flexibelbogen in its entirety a simultaneous adjustment of the radial distance to the drum axis at all bearings.

Ist das Verschlebemittel mit einem Antrieb versehen, kann eine derartige Lagerung als automatische Deckelaktorik genutzt werden. In Kombination mit einer bekannten Vorrichtung zur Messung des Kardierspaltes kann durch die Steuerung der Maschine ein automatisches Nachstellen des Kardierspaltes Ober eine derartige Deckelaktorik vorgenommen werden.If the Verscheveremittel provided with a drive, such a storage can be used as automatic Deckelaktorik. In combination with a known device for measuring the carding gap can be made by the control of the machine, an automatic readjustment of the carding nip above such Deckelaktorik.

Im Folgenden wird die Erfindung anhand von einer beispielhaften Ausführungsform erklärt und durch Zeichnungen näher erläutert.

  • Figur 1 Schematische Darstellung einer Seitenansicht einer Wanderdeckelkarde nach dem Stand der Technik
  • Figur 2 Schematische Darstellung einer Ausführungsform einer Lagerstelle nach der Erfindung
  • Figur 3 Schematische Darstellung einer weiteren Ausführungsform der Erfindung
  • Figur 4 Schematische Darstellung einer Ausführungsform eines Verschiebemittels
In the following the invention will be explained with reference to an exemplary embodiment and explained in more detail by drawings.
  • FIG. 1 Schematic representation of a side view of a Wanderdeckelkarde according to the prior art
  • FIG. 2 Schematic representation of an embodiment of a bearing according to the invention
  • FIG. 3 Schematic representation of another embodiment of the invention
  • FIG. 4 Schematic representation of an embodiment of a displacement means

In der Figur 1 ist eine bekannte Wanderdeckelkarde 1 dargestellt, wobei Flocken von einem Füllschacht 2 einer Faserspeisevorrichtung 3 und einer nachfolgenden Trommel 4 zugeführt werden. Die Wanderdeckelkarde 1 umfasst eine einzige Trommel 4 (Hauptzylinder oder sogenannter Tambour), die drehbar in einem Maschinengestell 5 getragen wird. Die Trommel 4 arbeitet in bekannter Weise mit einer wanderdeckelanordnung 6, einer Faserspeisevorrichtung 3, sowie einem Faserabnehmersystem 8 zusammen, wobei letzteres insbesondere einen sogenannten Abnehmer 9 aufweist. Zwischen der Wanderdeckelanordnung 6, der Faserspeisevorrichtung 3 und dem Faserabnehmersystem 8 können Kardierelemente und Faserleitelemente angeordnet sein, die hier nicht näher gezeigt sind. Das Faserabnehmersystem 8 fördert das Faserband 10 zu einer schematisch angedeuteten Faserbandablage 11.In the FIG. 1 a known revolving flat card 1 is shown, wherein flakes are fed from a hopper 2 a fiber feeding device 3 and a subsequent drum 4. The revolving flat card 1 comprises a single drum 4 (master cylinder or so-called drum), which is rotatably supported in a machine frame 5. The drum 4 works in a known manner with a wanderdeckelanordnung 6, a fiber feeding device 3, and a fiber pickup 8 together, the latter in particular has a so-called takers 9. Carding elements and fiber guiding elements, which are not shown here in detail, can be arranged between the revolving lid arrangement 6, the fiber feeding device 3 and the fiber dispensing system 8. The fiber-receiving system 8 conveys the sliver 10 to a schematically indicated sliver storage 11.

An der genannten Wanderdeckelanordnung 6 ist eine Vielzahl von Wanderdeckeln 13 vorgesehen, wobei in der Figur 1 nur einzelne Wanderdeckel 13 schematisch abgebildet sind. Heute gebräuchliche Wanderdeckelanordnungen 6 umfassen eng beabstandet mehrere Wanderdeckel 13, die umlaufen. Hierzu werden die Wanderdeckel 13 in der Nähe ihrer jeweiligen Stirnseiten von Endlosbändern 12 getragen und gegen oder mit der Drehrichtung der Trommel 4 bewegt. Die Abstützung erfolgt dabei auf Flexibelbogen 7 auf der Unterseite der Wanderdeckelanordnung 6. Auf den Flexibelbogen 7 gleitend werden die Wanderdeckel 13 an der Trommeloberfläche entlang geführt.At the aforementioned moving lid assembly 6, a plurality of traveling lids 13 is provided, wherein in the FIG. 1 only individual moving lid 13 are shown schematically. Currently used traveling lid assemblies 6 include closely spaced a plurality of traveling lids 13 that circulate. For this purpose, the moving lid 13 are supported in the vicinity of their respective end faces of endless belts 12 and moved against or with the direction of rotation of the drum 4. The support takes place on flexible sheet 7 on the underside of the revolving lid assembly 6. Sliding on the flexible sheet 7, the moving lid 13 are guided along the drum surface.

Figur 2 zeigt in schematischer Darstellung eine Ausführungsform einer Lagerstelle 20 nach der Erfindung. An der Lagerstelle 20 ist der Flexibelbogen 7 auf einem Bolzen 21 gehalten. Der Bolzen 21 ist exzentrisch gelagert, das heisst die Drehachse des Bolzens 21 ist nicht in dessen Mitte angeordnet. Der Bolzen 21 kann entgegen der Darstellung in Figur 2 als Kreissegment ausgeführt sein, welches sich im Bereich des Flexibelbogens 7 befindet Der Bolzen 21 bewirkt durch seine Drehbewegung 22 ein Anheben des Flexibelbogens 7. Der Bolzen 21 ist über einen Hebel 24 mit einem Anlenkpunkt 31 einer vom Bolzen 21 beabstandeten Einstellvorrichtung 23 verbunden. Der Anlenkpunkt 31 wird in Figur 2 von einem Bauteil (32) gebildet, welches mit seinem Innengewinde in das Aussengewinde einer Einstellschraube 26 greift. Bei einer Drehung der Einstellschraube 26 wird der Anlenkpunkt 31 über die ineinandergreifenden Gewinde linear auf der Schraubenachse 27 bewegt. Die Bewegung kann dabei in beide Richtungen erfolgen, abhängig von der Ausführung der Gewinde und der Drehrichtung der Einstellschraube 26. FIG. 2 shows a schematic representation of an embodiment of a bearing 20 according to the invention. At the bearing point 20 of the flexible sheet 7 is held on a pin 21. The bolt 21 is mounted eccentrically, that is, the axis of rotation of the bolt 21 is not disposed in the center. The bolt 21 can, contrary to the illustration in FIG. 2 be executed as a circle segment, which is located in the region of the flexible bend 7 The bolt 21 causes by its rotational movement 22, a lifting of the Flexibelbogens 7. The bolt 21 is connected via a lever 24 with a pivot point 31 of a spaced apart from the bolt 21 adjuster 23. The articulation point 31 is in FIG. 2 formed by a component (32) which engages with its internal thread in the external thread of an adjusting screw 26. Upon rotation of the adjusting screw 26, the articulation point 31 is moved linearly on the screw axis 27 via the intermeshing threads. The movement can take place in both directions, depending on the design of the thread and the direction of rotation of the adjusting screw 26th

Die Einstellvorrichtung 23 ist im Maschinegestell 5 durch die Einstellschraube 26 gehalten. Zwischen dem Maschinengestell 5 und dem den Anlenkpunkt 31 bildenden Bauteil (32) ist als Vorspannmittel eine Druckfeder 28 eingebaut. Durch die Druckfeder 28 werden die Flanken des Innengewindes des Bauteils (32) einseitig in Kraftrichtung der Druckfeder 28 gegen die Flanken des Aussengewindes der Einstellschraube 26 gepresst. Mit Hilfe dieser Presskraft wird die lineare Bewegung des Anlenkpunktes 31 auf der Schraubenachse 27 bei Drehung der Einstellschraube 26 spielfrei. Unabhängig davon, in welche Richtung eine Drehung der Einstellschraube 26 ausgeführt wird entspricht die lineare Verschiebung des Anlenkpunktes 31 immer der vorgegebenen Steigung der Gewinde entsprechend der Anzahl Umdrehungen der Einstellschraube 26. Sollte die Druckfeder 28 brechen, erfolgt eine Bewegung des Anlenkpunktes 31 in derjenigen Richtung, welche über den Hebel 24 und den Bolzen 21 ein Anheben des Flexibelbogens 7 bewirkt.The adjusting device 23 is held in the machine frame 5 by the adjusting screw 26. Between the machine frame 5 and the articulation point 31 forming member (32) is a biasing means a compression spring 28 is installed. By the compression spring 28, the flanks of the internal thread of the component (32) are pressed on one side in the direction of force of the compression spring 28 against the flanks of the external thread of the adjusting screw 26. With the help of this pressing force, the linear movement of the articulation point 31 on the screw axis 27 upon rotation of the adjusting screw 26 is free of play. Regardless of the direction in which a rotation of the adjusting screw 26 is carried out corresponds to the linear displacement of the articulation point 31 always the predetermined pitch of the thread corresponding to the number of revolutions of the adjusting screw 26. Should the compression spring 28 break, there is a movement of the articulation point 31 in that direction, which via the lever 24 and the pin 21 causes a lifting of the flexible sheet 7.

Die Einstellschraube 26 wird zusätzlich zur Befestigung im Maschinengestell 5 durch eine Temperaturausgleichshülse 29 geführt. Die Temperaturausgleichshülse 29 ist zwischen dem Maschinengestell 5 und dem Schraubenkopf der Einstellschraube 26 eingespannt. Bei Erwärmung der Umgebungstemperatur dehnt sich die Temperaturausgleichshülse 29 in ihrer Länge aus. Die Ausdehnung der Temperaturausgleichshülse 29 ist aufgrund des Materials grösser als die Ausdehnung der Einstellschraube 26. Dadurch wird der Anlenkpunkt 31 linear auf der Schraubenachse 27 verschoben, was wiederum über den Hebel 24 und den Bolzen 21 zu einer Verschiebung des Auflagepunktes und damit des Flexibelbogens 7 führt.The adjusting screw 26 is guided in addition to the attachment in the machine frame 5 by a temperature compensation sleeve 29. The temperature compensation sleeve 29 is clamped between the machine frame 5 and the screw head of the adjusting screw 26. When the ambient temperature is heated, the temperature compensation sleeve 29 expands in length. The expansion of the temperature compensation sleeve 29 is due to the material larger than the extension of the adjusting screw 26. As a result, the articulation point 31 is linearly displaced on the screw axis 27, which in turn via the lever 24 and the pin 21 to a displacement of the support point and thus the flexible sheet 7 leads ,

Figur 3 zeigt in schematischer Darstellung einen Flexibelbogen 7 mit drei Lagerstelle 20. An jeder Lagerstelle 20 liegt der Flexibelbogen 7 auf einem exzentrisch gelagerten Bolzen 21 auf. Der Bolzen 21 ist drehfest über einen Hebel 24 mit einem Anlenkpunkt einer Einstellvorrichtung 23 verbunden. Die Einstellvorrichtung 23 ist für jede der drei Lagerstellen 20 symbolisch dargestellt und entspricht beispielsweise der in Figur 2 beschriebenen Ausführungsform. Zwischen dem Auflagepunkt des Bolzens 21 und dem Flexibelbogen 7 ist ein Verschiebemittel 40 eingefügt. Das Verschiebemittel 40 ist derart vorgesehen, dass es durch alle Lagerstellen 20 des Flexibelbogens 7 geführt ist. Im Bereich der Lagerstellen 20 ist das Verschiebemittel 40 mit einer sich verändernden Dicke ausgeführt. Bei einer Bewegung des Verschiebemittels 40 in Trommelumfangsrichtung bewirkt dies, dass der Flexibelbogen 7 gegenüber dem Auflagepunkt des Bolzens 21 radial zur Trommelachse verschoben wird. FIG. 3 shows a schematic representation of a flexible sheet 7 with three bearing 20. At each bearing point 20 of the flexible sheet 7 rests on an eccentrically mounted pin 21. The bolt 21 is rotatably connected via a lever 24 with a pivot point of an adjusting device 23. The adjusting device 23 is shown symbolically for each of the three bearings 20 and corresponds, for example, in FIG. 2 described embodiment. Between the support point of the bolt 21 and the flexible sheet 7, a displacement means 40 is inserted. The displacement means 40 is provided such that it is guided through all bearing points 20 of the flexible sheet 7. In the area of the bearings 20, the displacement means 40 is designed with a varying thickness. In a movement of the displacement means 40 in the drum circumferential direction, this causes the flexible sheet 7 is moved relative to the support point of the bolt 21 radially to the drum axis.

Das Verschiebemittel 40 ist an einem seiner Enden mit dem Maschinengestell 5 verbunden. Das Verschiebemittel 40 wird dabei flexibel im Maschinengestell 5 gehalten. Die Halterung ist beispielsweise mit einer Feder oder einem anderen Zugmittel ausgeführt. Bei einer Vorspannung des Zugmittels ist dabei gewährleistet, dass das Verschiebemittel 40 in beide Richtungen entlang der Trommeloberfläche bewegbar ist und in einer gewählten Position gehalten werden kann. Zur Bewegung des Verschiebemittels 40 ist dieses an seinem zweiten Ende mit einem Antrieb 41 verbunden. Der Antrieb 41 kann manuell oder motorisch erfolgen, wozu sich verschiedene Antriebsmittel eignen, beispielsweise Elektromotoren oder pneumatische Antriebe.The displacement means 40 is connected at one of its ends to the machine frame 5. The displacement means 40 is held flexibly in the machine frame 5. The holder is designed for example with a spring or other traction means. At a bias of the traction means is ensured that the displacement means 40 is movable in both directions along the drum surface and can be held in a selected position. For movement of the displacement means 40, this is connected at its second end to a drive 41. The drive 41 can be done manually or by motor, for which purpose various drive means are suitable, for example electric motors or pneumatic drives.

Wird der Antrieb 41 mit einer Steuerung verbunden, welche ihrerseits mit einer Messvorrichtung zur Bestimmung des Kardierspaltes verbunden ist, kann mit Hilfe des Verschiebemittels 40 eine Deckelaktorik betrieben werden. Eine Deckelaktorik dient zur automatischen Nachstellung des Kardierspaltes zwischen den Wanderdeckeln 13 und der Trommel 4 einer Karde 1. Werden die Garnituren der Trommel 4 oder die Garnituren der Wanderdeckel 13 beispielsweise nachgeschliffen, wird diese Veränderung des Kardierspaltes durch die Messvorrichtung von der Steuerung festgestellt und selbsttätig über das Verschiebemittel 40 ausgeglichen.If the drive 41 is connected to a controller, which in turn is connected to a measuring device for determining the carding gap, a cover actuator can be operated with the aid of the displacement means 40. A Deckelaktorik used for automatic adjustment of the carding gap between the revolving flats 13 and the drum 4 a card 1. If the sets of drum 4 or the sets of revolving cover 13, for example, reground, this change in the carding is determined by the measuring device of the controller and automatically over the displacement means 40 compensated.

Figur 4 zeigt eine Ausführungsform eines Verschiebemittels 40 in schematischer Darstellung. Als Verschiebemittel 40 ist dabei ein Blechstreifen 50 vorgesehen, welcher durch sämtliche Lagerstellen 23 hindurch geführt wird. Der Blechstreifen 50 wird zwischen dem Bolzen 21 und dem Flexibelbogen 7 eingefädelt. Im Bereich einer Lagerstelle 23 ist der Blechstreifen 50 jeweils angeschliffen. Dadurch ergibt sich eine konstante Veränderung der Dicke des Blechstreifens 50 im Bereich der Lagerstelle 23. Davon ausgehend, dass der Bolzen 21 ortsfest ist, wird bei einer Bewegung 51 des Blechstreifens 50 der Abstand zwischen dem Bolzen 21 und dem Flexibelbogen 7 vergrössert respektive verkleinert. Dadurch wird der Flexibelbogen 7 an allen lagerstellen 23 gleichzeitig radial in Bezug zur Trommelachse verschoben. Anstelle eines Blechstreifens kann auch ein anderes Verschiebemittel verwendet werden, welches der Belastung durch den Flexibelbogen 7 standhält Es ist auch denkbar, dass jeweils an einer Lagerstelle 23 ein Blechstreifen eingesetzt wird und diese Blechstreifen mit anderen Mitteln, beispielsweise Kabeln miteinander verbunden sind um eine gleichzeitige und gleichartige Bewegung zu ermöglichen. FIG. 4 shows an embodiment of a displacement means 40 in a schematic representation. As a displacement means 40 while a metal strip 50 is provided, which is guided through all bearings 23 therethrough. The metal strip 50 is threaded between the bolt 21 and the flexible sheet 7. In the area of a bearing 23, the metal strip 50 is ground in each case. This results in a constant change in the thickness of the metal strip 50 in the region of the bearing 23. Assuming that the pin 21 is stationary, the distance between the pin 21 and the flexible sheet 7 is increased or reduced in a movement 51 of the metal strip 50. As a result, the flexible sheet 7 is displaced simultaneously at all bearing points 23 radially relative to the drum axis. It is also conceivable that in each case at a bearing point 23, a sheet metal strip is used and these metal strips are connected to each other by other means, such as cables to a simultaneous and instead of a metal strip to allow similar movement.

LegendeLegend

11
Wanderdeckelkarderevolving
22
Füllschachthopper
33
FaserspeisevorrichtungFiber feeding device
44
Trommeldrum
55
Maschinengestellmachine frame
66
WanderdeckelanordnungRevolving flat arrangement
77
Flexibelbogenflexible bend
88th
FaserabnehmersystemFiber collector system
99
Abnehmercustomer
1010
Faserbandsliver
1111
FaserbandablageSliver tray
1212
Endlosbandendless belt
1313
Wanderdeckelrevolving flat
2020
Lagerstelledepository
2121
Bolzenbolt
2222
Drehbewegung des Bolzens (21)Rotary movement of the bolt (21)
2323
Einstellvorrichtungadjustment
2424
Hebellever
2525
Lineare Verschiebung des Anlenkpunktes (31)Linear displacement of the articulation point (31)
2626
Einstellschraubeadjustment
2727
Schraubenachsescrew axis
2828
Vorspannmittelbiasing means
2929
TemperaturausgleichshülseTemperature compensation sleeve
3030
Blockierungblocking
3131
Anlenkpunktarticulation
3232
Bauteilcomponent
4040
Verschiebemitteldisplacement means
4141
Antriebdrive
5050
Blechstreifenmetal strip
5151
Bewegung des Blechstreifens (50)Movement of the sheet metal strip (50)

Claims (12)

  1. A mounting of a flexible bend (7) in a revolving flat card (1) with a drum (4) and a drum axis, wherein the mounting comprises at least three bearing positions (20) each with an eccentrically mounted pin (21) and the flexible bend (7) is retained at each bearing position (20) on said eccentrically mounted pins (21) in such a manner that during a rotational movement (22) of the pin (21), the flexible bend (7) is displaced radially to the drum axis, characterized in that an adjusting device (23) is provided which is spaced apart from the pin (21) and said adjusting device (23) is connected at an articulation point (31) via a lever (24) to the pin (21) in such a manner that during a linear displacement (25) of the articulation point (31), a rotational movement (22) of the pin (21) is caused in the adjusting device (23) via the lever (24).
  2. The mounting according to claim 1, characterized in that the adjusting device (23) comprises an adjusting screw (26) with a screw axis (27) and by means of the rotation of the adjusting screw (26), the linear displacement (25) of the articulation point (31) along the screw axis (27) is caused.
  3. The mounting according to claim 2, characterized in that the adjusting device (23) comprises a biasing means (28), wherein the biasing means (28) is arranged in such a manner that a play-free linear displacement (25) of the articulation point (31) in the adjusting device (23) takes place.
  4. The mounting according to claim 3, characterized in that the biasing means (28) is a compression spring and the same is arranged in such a manner that a fracture of the compression spring effects a radial displacement of the flexible bend (7) away from the drum axis.
  5. The mounting according to claims 2 to 4, characterized in that the adjusting device (23) comprises a temperature compensation sleeve (29) which, in addition to the rotation of the adjusting screw (26), effects a linear displacement (25) of the articulation point (31) along the screw axis (27) in order to compensate a temperature-related expansion of the drum (4) via a corresponding radial displacement of the flexible bend (7).
  6. The mounting according to claims 2 to 5, characterized in that eccentricity of the pin (21) is in such a relationship with the length of the lever (24) that one revolution of the adjusting screw (26) effects a radial displacement of the flexible bend (7) of 0.1 to 10% of a thread pitch provided on the adjusting screw (26).
  7. The mounting according to claims 1 to 6, characterized in that a releasable blockage (30) of the linear displacement (25) of the articulation point (31) is provided for fixing a basic adjustment.
  8. The mounting according to claims 1 to 7, characterized in that at least at one bearing point (20), the flexible bend (7) is operatively connected to the pin (21) in such a manner that the flexible bend (7) cannot lift off the pin (21).
  9. The mounting according to claims 1 to 8, characterized in that between the flexible bend (7) and the pin (21), a displacement means (40) is arranged, wherein the flexible bend (7) can be displaced radially to the drum axis in all bearing positions (21) at the same time via the displacement means.
  10. The mounting according to claim 9, characterized in that the displacement means (40) is configured in such a manner that by a movement of the same, a distance between the pin (21) and the flexible bend (7) changes radially to the drum axis.
  11. The mounting according to claim 9 or claim 10, characterized in that the displacement means (40) is provided with a drive (41).
  12. A revolving flat card (1) with a drum (4) provided with a drum clothing, and with a revolving flat arrangement (6) which is formed from a plurality of Interconnected revolving flats (13) which are guided on a flexible bend (7), characterized in that the flexible bend (7) is equipped with a mounting according to any one of the claims 1 to 11.
EP20110004188 2010-06-02 2011-05-20 Storage of a flexible arch in a revolving flat card Active EP2392703B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00876/10A CH703250A1 (en) 2010-06-02 2010-06-02 Supporting a flexible bend in a revolving flat.

Publications (2)

Publication Number Publication Date
EP2392703A1 EP2392703A1 (en) 2011-12-07
EP2392703B1 true EP2392703B1 (en) 2012-11-28

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Application Number Title Priority Date Filing Date
EP20110004188 Active EP2392703B1 (en) 2010-06-02 2011-05-20 Storage of a flexible arch in a revolving flat card

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EP (1) EP2392703B1 (en)
CN (1) CN102268754B (en)
CH (1) CH703250A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH711367A1 (en) 2015-07-31 2017-01-31 Rieter Ag Maschf Storage of a flexible arch in a hiking blanket card.
DE102017118884A1 (en) * 2017-08-18 2019-02-21 TRüTZSCHLER GMBH & CO. KG Card with a setting device for the carding gap
CH720172A1 (en) 2022-10-27 2024-05-15 Rieter Ag Maschf Device and method for adjusting a carding gap of a card

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US528007A (en) * 1894-10-23 Machine works
DE4108921C2 (en) * 1991-03-19 2001-03-01 Truetzschler Gmbh & Co Kg Device on a card with a moving lid made of flat bars provided with clothing
EP0627508A1 (en) * 1993-06-04 1994-12-07 Maschinenfabrik Rieter Ag Diagnosis apparatus
US5625924A (en) * 1994-07-29 1997-05-06 Maschinenfabrik Rieter Ag Method for producing a card sliver and carding machine therefor
EP0787841B2 (en) * 1996-02-02 2006-08-30 Maschinenfabrik Rieter Ag Production method of a carding sliver with a carding machine and carding machine
DE19651894B4 (en) * 1996-12-13 2006-09-14 TRüTZSCHLER GMBH & CO. KG Device on a card for textile fibers, z. As cotton, chemical fibers o. The like. From provided with clothing flat bars
DE10053448A1 (en) * 2000-10-27 2002-05-08 Rieter Ag Maschf Device and method for adjusting the working gap between the tips of cover sets and the tips of the drum set of a card
EP1740745B1 (en) * 2004-04-26 2009-07-15 Maschinenfabrik Rieter Ag Spring mechanism for a flex bow
CN1993506B (en) * 2004-08-03 2010-09-08 里特机械公司 Device and method for a carder
EP1931819A1 (en) * 2005-10-06 2008-06-18 Maschinenfabrik Rieter Ag Lid actuating system
DE102009009333A1 (en) * 2009-02-17 2010-08-19 TRüTZSCHLER GMBH & CO. KG Device on a spinning preparation machine, in particular carding, carding o. The like. For adjusting a working gap

Also Published As

Publication number Publication date
CN102268754B (en) 2016-01-20
EP2392703A1 (en) 2011-12-07
CH703250A1 (en) 2011-12-15
CN102268754A (en) 2011-12-07

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